I believe that it depends on the bird and also the amount of bonding between you and Sammi, but I have found that tame birds will at least remain more calm in the presence of your hand compared to other aviary birds, I have found also that if the tame bird finds a mate he has a less likely chance of remaining tame as his attention will be on the other bird.
Most of my aviary birds are tame just from spending alot of time sitting in the avairy, so as I said before it depends on the birds, the strength of the human bird bond and how much time you spend in the aviary with the birds.
Thanks Carri